Added localized extension description

_locales/de/messages.json

@@ -1,4 +1,8 @@
 {
+    "extension_description": {
+        "message": "Entfernt tracking Elemente von URLs.",
+        "description": "Erweiterungsbeschreibung"
+    },
     "hash_status_code_1": {
         "message": "Aktuell",
         "description": "Dieser Statuscode besagt, dass kein Update für die ClearURLs-Regeln verfügbar ist und alles auf dem neuesten Stand ist."

_locales/en/messages.json

@@ -1,4 +1,8 @@
 {
+    "extension_description": {
+        "message": "Remove tracking elements from URLs.",
+        "description": "Extension description."
+    },
     "hash_status_code_1": {
         "message": "up to date",
         "description": "This status code says, that no update is available for the ClearURLs rules and everything is up to date."

manifest.json

@@ -3,7 +3,7 @@
     "name": "ClearURLs",
     "version": "1.15.0",
     "author": "Kevin Röbert",
-    "description": "Remove tracking elements from URLs.",
+    "description": "__MSG_extension_description__",
     "homepage_url": "https://gitlab.com/KevinRoebert/ClearUrls",
     "default_locale": "en",
     "applications": {